aeroSPACE_engineer;3588594OK, not good at all. My computer has started resetting now when I leave the power on, though generally at the last second before the windows load screen, and then it asks if I want to run in safe mode... I say no and it works. However, turning the power off, is now A LOT worse. When I turned the computer back on, after being disconnected from the mains this time, it reset roughly every 1.5 seconds. This was enough time to hear the various drives begin to spin up and then they all cut out and it reset again. Nothing was reaching the screen in this time. I unplugged various USB devices, and after unpluggin the last one, my webcam... it finally progressed further. It then proceeded to get as far as the windows load screen before restarting again. This happened twice more, so I entered BIOS and noted down a few things, and by the time I exited, all was well.
But restarting that quickly, that is far too fast for any real software error, and it can't be a proper permanent physical error as eventually it overcomes it.
And once I finally get into windows all is fine, I can play the most demanding games that ever worked as well as the day I got the computer.
And the problem has definitely worsened... A LOT.
The values I noted from the BIOS that apeared to be of interest are as follows:
CPU temp. 88C
Vcore 1.41V
DDR25V 2.63V
+3.3V 3.35V
+12V 12.27V
CPU FAN speed 2671 - 2730 RPM
SYSTEM FAN 0 RPM (I need to check this, as I suspect the BIOS just can't take a reading)
In another menu:
CPU Host Frequency 200 MHz
AGP/PCI/SRC Fixed 66/33/100
Memory frequency 400 MHz
AGP/PCI/SRC Frequency 66/33/100
Anyone see any anomolies in these... unfortunately I don't know if these are normal, and it wasn't restarting itself at this point either so...
I am fairly certain it is some form of power issue... but a weird one at best.
Any help would be greatly appreciated... meanwhile I am going to back up some stuff on DVDs...

CPU temp of 88C? That's insane. No processor with proper cooling should be that hot, especially if you're experiencing what you say.. which means I doubt you're running many programs that could make it generate that much heat. Have you tried checking the heatsink on the cpu? Perhaps it needs to be cleaned (between the cpu and heatsink) and new silicon applied.

Also, I tried to go briefly through all the replies, but didn't see if you tried resetting your bios? Perhaps there's a setting in there you were playing with that caused the voltages to go out of whack. The random resetting and wierd issues you're reporting are a symptom of that as well.

Also, a tip for others. Never EVER use a vacuum to clean the inside of a computer. The suction generated by it causes a static field and you put out a high risk of shorting our your system. The "I do it all the time and it's never happened to me" doesn't fly. I saw that as a suggestion and wanted to make it clear what can happen if you try that.

It could have been full of dust at that point when it read 88C, my heatsink periodically gets clogged up, twice before it has reached the stage where my PC just cuts out. Or maybe thats some kind of typo, I don't remember. Not reading all the replies is OK, but perhaps you should read the most recent replies if you did you would have seen that this thread has been dead for some time, and I resurrected it to say that the problem was with the GPU and it is fixed now working perfectly.

If your PC gets restarted after first windows screen then it must be a problem of your processor fan, please check out whether your fan on processor connected properly or not. Processor generates so much heat for which fan helps it to stable the temprature of the processor. If its not attached properly then it must be a problem of your processor fan.

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